Dough twister



March 29, 1955 H. c. RHODES DOUGH TWISTER 2 sheets-sheet 1 OriginalFiled Oct. 20, 1948 IN V EN TOR.

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DoUGH TwIsTER original Filed oct. 20, 1948 2 sheets-shew.V 2

INVEN TOR.

Herbert C. Rhodes BY Attorney United States Patent O DOUGH TWISTERHerbert C. Rhodes, Portland, Oreg., assignor to Read StandardCorporation, a corporation of Delaware Original application October 20,1948, Serial No. 55,475, now Patent No. 2,631,549, dated March 17, 1953.gsixiled and this application April 24, 1952, Serial No.

6 Claims. (Cl. 107-9) This invention relates generally to the breadmaking industry and particularly to a dough twister.

This application is a division of my co-pending application Serial No.55,475, iiled October 20, 1948, now Patent Number 2,631,549, dated March17, 1953.

The main object of the invention is to provide a machine for twistingthe dough before being placed in the pan for baking for the purpose ofchanging the grain and closing holes in the dough and retarding thedrying action of the bread by the elongation and distortion of theholes.

Another object is to provide a dough kneading machine whereby a morecompletely uniform `texture is insured throughout the entire mass of thedough pieces.

I accomplish these and other objects in the manner set forth in thefollowing specification as illustrated in the accompanying drawings, inwhich:

Figure l is a side elevation of the machine;

Figure 2 is a plan view of the machine;

Figure 3 is a sectional view taken on the line 3-3 of Figure 1; and

Figure 4 is a sectional view taken on the line 4-4 of Figure 1.

Like numbers of reference refer to the same or similar parts throughoutthe several views.

Referring in detail to the drawings, there is shown a table mounted onthe legs 11 and 12. Mounted across the opposite ends of the table 10 arethe shafts 13 and 14 on which are mounted the pulleys 15 and 16, andaround which pulleys pass the apron or endless conveyor 17, the top runof which rides upon the table 10.

The endless conveyor 17 may be driven by any suitable means (not shown),power being supplied through either of the shafts 13 or 14.

Above the table 10 is mounted the horizontal frame 18, above whoserounded ends 19 and 20 are secured, respectively, the transverselyspaced standards 21 and transversely spaced standards 22. The standards21 support a transversely extending bolt 23, upon which the rotatablepulleys 24 and 25 are mounted. The pulley 25, disposed between the pairof pulleys 24, has a diameter different than and as shown in thedrawings greater than the diameter of the pulleys 24.

Carried by the standards 22 is a transversely extending shaft 26 onwhich are mounted the rotatable drive pulleys 27 and 28. The pulleys 27equal in diameter the pullezys 24 and the pulley 28 equals in diameterthe pulley 5.

The belts 29 pass around the pulleys 24 and 27 and a belt 30 passesaround the pulleys 25 and 28. The lower runs of the belts 29 and 30 ridealong the under side of the horizontal frame 18.

Belt tightening pulleys 31 and 32 are mounted on the arms 33 and 34which are hingedly attached to the frame 18 by means of the pins 35 and36. Power is supplied to the shaft 26 from any convenient source ofpower through the sprocket wheel 37 which is secured on the end of anextension of the shaft 26.

Mounted on the table 10 are thestandards 38 and 39 which support thetransversely extending longitudinally spaced rollers 40 and 41, aroundwhich rollers is loosely passed the wire cloth belt 42, to whichmotionis imparted by the roller 40 through its shaft 43 on which is secured asprocket wheel 44 to which power may be supplied from any convenientsource (not shown).

The operation of the device is as follows. Assuming that a sheet ofdough 45 is fed onto the table 10 by means of the conveyor 17 beneaththe lower run of the belt 42, which is traveling in a direction oppositethe direction of travel of the upper run of the conveyor 17, it can beseen that the dough will be coiled to form an elongated roll of doughwhich is carried forward by the conveyor 17 underneath the belts 29 and30.

It will be noted that the centralbelt 30 is somewhat thicker than theouter belts 29 and therefore projects somewhat below the outer belts asshown in Figure 3, thereby placing it in somewhat greater pressurecontact with the roll of dough 46.

It will be observed that the pulleys 27 and 28 are on the same shaft 26and will be driven at the same speed but, having different diameters,the pulley 28 will drive the belt 30 faster than the pulleys 27 willdrive the belts 29. The result is the impartation of a twisting motionto the roll of dough 47 throughout the length of its travel toward thedischarge end of the machine.

It can be seen from the foregoing that without the use of additionalequipment, or the expenditure of time, desirable twisting action isimparted while moulding the dough and the texture of the bread isgreatly improved.

I claim:

1. A dough working machine comprising a pair of spaced opposed endlessconveyors providing between them a dough conveying passage, one of saidconveyors including three endless belts disposed in juxtaposition, meansto drive said endless conveyors, the drive for said one conveyorincluding means to operate the intermediate of said juxtaposed belts ata greater linear'speed than the outer of said juxtaposed belts.

2. A dough working machine comprising an endless conveyor having ahorizontally disposed top run, three endless belts disposed injuxtaposition having horizontally disposed bottom runs overlying andspaced from the top run of said endless conveyor to provide therebetweena dough conveying passage, means .to drive said endless conveyor andsaid belts, the drive'ffor said belts including means to operate theintermediate of said juxtaposed belts at a greater linear speed than theouter of said juxtaposed belts.

3. A dough working machine comprising an endless conveyor and pulleystherefor with horizontal axes, three endless belts disposed injuxtaposition and individual pulleys therefor with horizontal axes, saidendless belts being mounted in spaced relation over said endlessconveyor to provide therebetween a dough conveying passage, and meansfor driving said endless conveyor and said endless belts through saidpulleys, said driving means including a common drive for said endlessbelt pulleys, the pulleys for the intermediate of said juxtaposed beltshaving a greater diameter than the pulleys of the outer belts foroperating said intermediate belt at a greater linear speed than saidouter belts.

4. A dough working machine in accordance with claim 3, wherein the lowerrun of the intermediate belt is disposed nearer the top run of saidendless conveyor than are the lower runs of said outer belts.v

5. In a dough working machine, the combination ot two molding elementshaving spaced opposed surfaces forming therebetween a molding chamber toreceive and roll a piece of dough longitudinally of the chamber, one ofsaid elements including a plurality of endless belts disposed to providea plurality of longitudinally extending side by side belt surfaces forconjointly contacting a piece of dough in the said molding chamber, theopposed surfaces of said molding elements being straight and parallel inany transverse cross section, and means to drive said endless beltsincluding means for operating different of said dough contacting beltsurfaces at dif- Patented Mar. 29, 1955- ferent relative linear speedsfor rolling the dough piece longitudinally through said chamber.

6. In a dough working machine, the combination of two molding elementshaving spaced opposed surfaces forming therebetween a molding chamber toreceive and roll a piece of dough longitudinally of the chamber, one ofsaid elements including three endless belts disposed in juxtapositionproviding three longitudinally extending belt surfaces for conjointlycontacting a piece of dough in the said molding chamber, and means todrive said endless belts including means to operate the intermediate ofsaid juxtaposed belts at a greater linear speed than the outer of saidjuxtaposed belts.

References Cited in the le of this patent UNITED STATES PATENTS

